Nitromethane ignition behind reflected shock waves: Experimental and numerical study

Ignition delay times for nitromethane have been measured behind reflected shock waves over wide ranges of temperature (875–1595 K); pressure (2.0–35 atm); equivalence ratio (0.5, 1.0, and 2.0); and dilution (99, 98, 95, and 90% Ar by volume) using a L9 Taguchi array. Emission from excited-state hydroxyl radials (OH∗) was the primary diagnostic for determining the ignition delay times from the experiments. Results showed that nitromethane’s...